django.db.migrations.utils

module documentation
(source)

Undocumented

Class RegexObject Undocumented
Function field_is_referenced Return whether `field_tuple` is referenced by any state models.
Function field_references Return either False or a FieldReference if `field` references provided context.
Function get_migration_name_timestamp Undocumented
Function get_references Generator of (model_state, name, field, reference) referencing provided context.
Function resolve_relation Turn a model class or model reference string and return a model tuple.
Constant COMPILED_REGEX_TYPE Undocumented
Variable FieldReference Undocumented
def field_is_referenced(state, model_tuple, field_tuple): (source)

Return whether `field_tuple` is referenced by any state models.

def field_references(model_tuple, field, reference_model_tuple, reference_field_name=None, reference_field=None): (source)

Return either False or a FieldReference if `field` references provided context. False positives can be returned if `reference_field_name` is provided without `reference_field` because of the introspection limitation it incurs. This should not be an issue when this function is used to determine whether or not an optimization can take place.

def get_migration_name_timestamp(): (source)

Undocumented

def get_references(state, model_tuple, field_tuple=()): (source)

Generator of (model_state, name, field, reference) referencing provided context. If field_tuple is provided only references to this particular field of model_tuple will be generated.

def resolve_relation(model, app_label=None, model_name=None): (source)

Turn a model class or model reference string and return a model tuple. app_label and model_name are used to resolve the scope of recursive and unscoped model relationship.

COMPILED_REGEX_TYPE = (source)

Undocumented

Value
type(re.compile(r''))
FieldReference = (source)

Undocumented